en-us_commands:reference:ictuddownstate
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Table of Contents
IctudDownState()
IctudDownState() returns the lower-limit completion state of the Up/Down counter.
bool IctudDownState(uint8_t counter_id)
Commands
| Command | Arguments | Return Value | Operation |
|---|---|---|---|
IctudDownState(counter_id) | uint8_t counter_id — Counter number. Supports 0 ~ 255, the uint8_t range | bool | Returns the lower-limit completion state of the Up/Down counter. |
Example
const uint8_t COUNTER_ID = 5; const int32_t RACK_CAPACITY = 100; void setup() { Serial.begin(115200); } void loop() { const bool entered = digitalRead(0) == HIGH; const bool exited = digitalRead(1) == HIGH; Ictud(COUNTER_ID, entered, exited, false, false, RACK_CAPACITY); // Process up and down inputs with one counter. const bool rackEmpty = IctudDownState(COUNTER_ID); // Return the up/down counter's lower-limit completion state. digitalWrite(33, rackEmpty ? HIGH : LOW); }
Precautions
- The previous fixed 0~31 restriction has been removed. However, the argument type is
uint8_t, so the maximum ID is255. - If insufficient memory prevents allocation of counter state, counter commands return
falseor0. - Once created, counter state is retained while the program runs.
Built-in Commands in the Same Category
en-us_commands/reference/ictuddownstate.1788796399.txt.gz · Last modified: by 127.0.0.1
